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A Dual Three-Level T-NPC Inverter for High-Power Traction Applications
Abstract
This paper proposes a dual three-level, T-type, neutral-point clamped (T-NPC) inverter fed dual permanent magnet synchronous motor topology for low-voltage, high-power traction applications. The switching pulses of the T-NPC inverters are interleaved and controlled, such that they produce equal and opposite three-phase currents at their output. This maintains balanced dc-link voltages in steady-state and transient conditions, even with slight mismatches between two sets of three-phase loads. Thus, the proposed configuration decouples the modulation strategy from the capacitor balancing control. Simulation and experimental results demonstrate that in comparison to the conventional single T-NPC inverter, the proposed topology reduces dc-link capacitors' voltage deviation and current stress by more than 90% while avoiding additional switching instances to balance capacitor voltages.
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“In [64] a dual PMSM motor is driven using a dual T-type NPC (TNPC) converter which resulted in over 90% current reduction in DC-link capacitors.”
From A Review of Multilevel Inverter Topologies in Electric Vehicles: Current Status and Future Trends (2021) · cites this paper as [64]
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Cited by
Sorted by citations
A Review of Multilevel Inverter Topologies in Electric Vehicles: Current Status and Future Trends
Poorfakhraei, A., Narimani, M., & Emadi, A. (2021) · IEEE Open Journal of Power Electronics · doi:10.1109/ojpel.2021.3063550 · Cited by 424
“In [64] a dual PMSM motor is driven using a dual T-type NPC (TNPC) converter which resulted in over 90% current reduction in DC-link capacitors.”
MethodAutomotive Traction Inverters: Current Status and Future Trends
Reimers, J., Dorn-Gomba, L., Mak, C., & Emadi, A. (2019) · IEEE Transactions on Vehicular Technology · doi:10.1109/tvt.2019.2897899 · Cited by 375
A Review of Modulation and Control Techniques for Multilevel Inverters in Traction Applications
Poorfakhraei, A., Narimani, M., & Emadi, A. (2021) · IEEE Access · doi:10.1109/access.2021.3056612 · Cited by 179
Metadata
- Authors
- Bhattacharya, S., Mascarella, D., Joos, G., Cyr, J.-M., & Xu, J.
- Affiliations
- McGill University (CA)
- TM4 (Canada) (CA)
- Venue
- IEEE Journal of Emerging and Selected Topics in Power Electronics
- Published
- 2016-06
- Volume
- 4
- Issue
- 2
- Pages
- 668-678
- ISSN
- 2168-6777 (ISSN-L)
- 2168-6785
- OpenAlex
- W2343645032
- Cited by
- 116
- References
- 0
- Citations by year
- 2026: 3 · 2025: 16 · 2024: 16 · 2023: 15 · 2022: 10 · 2021: 13 · 2020: 12 · 2019: 13 · 2018: 5 · 2017: 11 · 2016: 2
- FWCI
- 4.77
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- IEEE Journal of Emerging and Selected Topics in Power Electronics (publishedVersion)
- Funders
- McGill University
- Natural Sciences and Engineering Research Council of Canada
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Electric Motor Design and Analysis
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Sensorless Control of Electric Motors
- Keywords
- traction drives, DC-link voltage balancing, capacitor voltage balancing, current stress reduction
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